1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
arsen [322]
3 years ago
13

The evolution of eukaryotic cells most likely involved _____.

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
Absorbing prokaryotic cells. This theory is called the endosymbiotic theory.
The early prokaryotic cells that were absorbed likely evolved into mitochondria and chloroplasts, membrane-bound organelles with their own DNA in single chromosomes and their own ribosomes.
You might be interested in
Which natural occurrence is an example of a long-term environmental change?
pychu [463]

Answer:

The answer is D because it is the only example that takes place over a long period of time.

Explanation:

8 0
3 years ago
Read 2 more answers
In osmosis, water molecules move with the concentration gradient, therefore no energy is used. This is an example of:
olganol [36]

Answer:

The correct option is A. Inside of cell has more salt

Explanation:

When there will be more solute inside the cell than outside of the cell, then a concentration gradient will develop due to this uneven distribution. Water will move inside of the cell through a process known as osmosis. As the water molecules are moving along the concentration gradient, no energy will be used during this process.

The mechanism of osmosis is very essential in maintaining the turgidity of a cell.

4 0
3 years ago
How are red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism? (1 point) a)The
geniusboy [140]

Answer:

The correct answer is - option B. They are small because they lack a nucleus.

Explanation:

Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.

In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.

Thus, the correct answer is : option B. They are small because they lack a nucleus.

8 0
3 years ago
Scientist have discovered fossils on an island what type of rock for the most likely examining
Lena [83]
It is either <span>Igneous rock or </span><span>Sedimentary rock. But if I were to choose one, I would choose Igneous.</span>
8 0
3 years ago
What do the molecules in a solid object do
jonny [76]
The molecules in a solid object are packed together, meaning that they are closely together and can’t move freely
6 0
3 years ago
Other questions:
  • What would happen without enzymes
    8·1 answer
  • How do you make babies
    12·2 answers
  • Why does lava flow slowly in Hawaii?
    6·2 answers
  • In which of the following cell structures are the Drosophila chromosomes
    5·1 answer
  • According to Charles Darwin what is one reason that not all organisms survive in nature?
    12·1 answer
  • What is missing in the following nuclear equation?<br> 99 TC → ? + 99 Ru<br> 43<br> 44
    15·1 answer
  • The fossil record shows that two groups of organisms are related, which means they share a
    8·1 answer
  • What are molecules that help make the cell make its proteins correctly
    15·2 answers
  • Pea experiment:
    7·1 answer
  • The per capita ecological footprint is the total ecological footprint for a given country or area
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!